I feed her 2x a day - Beneful Healthy Radiance, but she still eats her own poop... oh and she does eat grass sometimes IDK if that has anything to do with it. Shes a 4yr old Cairn Terrier and lately when she doest eat her poop during the day she gets sick at night and throws up.. then eats that so I only find the soiled area inside the house. I know its somewhat normal for dogs to eat their own poop but it doesn't seem normal for her to get sick.. is there something I can do to stop her from eating the poop or what? I try to catch her before she eats it but sometimes shes already chomped down half of it...